Seven people have been arrested on suspicion of murder after a body was found down a seven-foot well in Surrey.
Police are still trying to recover the body from a front garden in Audley Drive in Warlingham.
A diving team has been called to the scene.
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The painting, entitled 'Beautiful Beautiful George Michael Love Painting', was auctioned to help raise funds for HIV and Aids prevention.
The 38-year-old victim was standing on a busy Victoria Line train when another passenger approached him.
The boy, called Roman, told police call handler his mum "is dead" and "she's closing her eyes and not breathing".